An Effective Charging Torque Elimination Method for Dual-Channel Electric-Drive-Reconstructed Onboard Chargers

IF 4.6 Q2 MATERIALS SCIENCE, BIOMATERIALS

ACS Applied Bio Materials Pub Date : 2024-05-08 DOI:10.3390/wevj15050205

Xunhui Cheng, Feng Yu, Linhao Qiu

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引用次数: 0

Abstract

The idea of electric-drive-reconstructed onboard charger (EDROC) systems, along with the concept of dual-channel charging, offers a novel design, thought to enhance the integration and fault tolerance of the charging system of electric vehicles (EVs). This article investigates a dual-channel EDROC incorporating an asymmetrical six-phase permanent magnet synchronous machine (ASPMSM). A unique operation mode, called the unbalanced charging voltage operation mode, exists in this topology, in case the voltages of the two batteries are unequal. This unbalance results in different winding currents following through two channels, leading to an undesired charging torque in the machine. To ensure the safety of the system, an effective charging torque elimination method, based on dual-channel winding current balance, is proposed, which achieves a dot-shaped current path of torque generation-associated subspace (i.e., α–β subspace) by balancing the dual-channel charging power. Eventually, a controller is designed for the system and a prototype is created, to validate the effectiveness of the proposed method.

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双通道电驱动重构车载充电器的有效充电扭矩消除方法

电驱动重构车载充电器（EDROC）系统的理念以及双通道充电的概念提供了一种新颖的设计，被认为可提高电动汽车（EV）充电系统的集成度和容错性。本文研究了一种采用非对称六相永磁同步电机（ASPMSM）的双通道 EDROC。在这种拓扑结构中，如果两个电池的电压不相等，就会出现一种独特的运行模式，即不平衡充电电压运行模式。这种不平衡会导致通过两个通道的绕组电流不同，从而在机器中产生不期望的充电扭矩。为确保系统安全，提出了一种基于双通道绕组电流平衡的有效充电转矩消除方法，通过平衡双通道充电功率，实现转矩产生相关子空间（即 α-β 子空间）的点状电流路径。最终，为该系统设计了一个控制器，并创建了一个原型，以验证所提方法的有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ACS Applied Bio Materials Chemistry-Chemistry (all)

CiteScore

9.40

自引率

2.10%

发文量

464

期刊介绍： ACS Applied Bio Materials is an interdisciplinary journal publishing original research covering all aspects of biomaterials and biointerfaces including and beyond the traditional biosensing, biomedical and therapeutic applications. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrates knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important bio applications. The journal is specifically interested in work that addresses the relationship between structure and function and assesses the stability and degradation of materials under relevant environmental and biological conditions.